ALEXANDRIA, Va., Nov. 25 -- United States Patent no. 12,479,617, issued on Nov. 25.
"Tail sealing method of tube container and a product thereof" was invented by Chih-Jung Chiang (Fujian, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A tail sealing method of a tube container and a product thereof, which achieves tail sealing and covering of an end surface of a mid-layer material of the tube container at the same time, so as to protect the mid-layer material. The tail sealing method includes the steps of: (1): placing a tube body into a tail sealing machine; aligning a left mold and a right mold of the tail sealing machine with an end opening of a tube tail of the tube body, and then closing the left m...